Safety shaving device.



No. 888,174. PATENTED MAY 19, 1908. 0. KAMPFB. SAFETY SHAVING DEVICE.

APPLICATION FILED MAY 14, 1904.

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OTTO KAMPFE, OF NEW YORK, N. Y.

SAFETY SHAVING DEVICE Specification of Letters Patent.

Patented May 19, 1908.

Application filed May 14, 1904. Serial No. 207,997.

T 0 all whom it may concern:

Be it known that I, OTTO KAMPFE, a citizen of the United States, andresident of the borough of Brooklyn, county of Kings, city and State ofNew York, have invented certain new and useful Improvements in SafetyShaving Devices, of which the following is a specification.

My invention relates to safety shaving implements, that is, deviceswhose operation is essentially that of removing shavings or thin layersas opposed to cutting, such for example, as an incisive cut, and inwhich implements I employ a guard, the object of which is not only toprevent any incision but to limit the depth or extent of the shaving orlayer removed, and the device of my invention is especially applicableas a corn razor or callous flesh remover.

In Letters Patent granted to me July 1, 1905, No. 793793, the subjectmatter of which was divided out of my present application, I have shown,and described the simpler and generic forms of my invention, in whichthe blade was fixed in the handle and the guard pivoted to the blade, soas to be turned to one side for cleaning or for some use where the guardwas not desired, such as an incisive cut.

In the preferred form of my invention which I have described andillustrated herein, the handle is hollow, the guard bears a pivotalrelation to the shank of the blade and is mounted thereon and the bladeis pivoted at its shank to the handle, so that the blade and guard maytogether be swung into the handle. In a position of use, both the bladeand the guard are held in position by spring members and the springmember which acts upon the guard is secured to the shank of the bladeand is adapted to hold the guard in place in either of two positions.

In the device of this application, as in the device in my aforesaidpatent, I leave a space between the inner edge of the guard and thecutting edge of the blade and vary the extent of said space along thecutting edge of the blade and so am enabled to control the-depth orthickness of the shavings or layers removed in the use of the implement.

In the drawing, Figure 1 is a side elevation and partial section throughthe handle, illustrating the preferred form of my invention. Fig. 2 is asimilar view except that the guard is raised away from the blade. Fig. 3is an elevation from the opposite side of the imple Fig. 4 is a crosssection through the blade and guard. Fig. 5 is a plan or top edge Viewof the parts shown in Fig. 1. Fig. 6 is an elevation and section throughthe handle, showing a slightly modified form of my invention.

Referring particularly to Figs. 1 to 5 1nclusive, the handle or bladesheath of the knife is composed of the side portions a a upon the metalcase or lining portions 2 2, and between these lining portions there isa spacing frame 3, said parts being riveted to M gcther in the usualmanner of assembling a knife handle. The spacing frame 3 is reduced oroff-set at one end so as to produce the spring I. The blade 6 and itstang b are integral; the blade is about the form shown and the blade andtang are pivotally connected to the handle by a pivot pin 5, whichpasses through the parts of the handle.

0 represents a spring member formed integrally with the tail piece 0 andoverlying the tang b of the blade to which said parts are secured in anywell known manner, such as by the flush rivets 6. This spring member isrecessed so as to pass around the pivot pin 5, as the same extends atboth sides or in both directions beyond said pivot pin 5.

(6 represents the guard connected to the blade by a pivot pin 7 andprovided near the pivot pin 7 with flat faces 8 and 9, which in the twopositions shown in Figs. 1 and 2, are adapted to bear upon the flat faceof the spring member so as to normally maintain the guard d in either ofthe relations to the blade shown in these figures,for while Fig. 1represents the position of use, Fig. 2 represents the position in whichthe guard is placed in cleaning the implement after use. This guard isprovided with the end catch (1 which as a hookpasses over the back ofthe blade at the free end and performs the twofold function of limitingthe downward movement of the guard into the position Fig. 1 and a deviceto be engaged by the finger in raising the guard to the position Fig. 2.

From the drawings, it will be noticed that the spring end 4 overlies thenotched upper edge of the tang b of the blade and bearing thereon holdsthe blade in the position Fig. 1 that the spring end 4 is no wider thanthe tang of the blade and that there is a recess between the same andthe metal case 2 at one side, through which recess the tail piece 1; ofthe spring member may pass and be outturned with the blade and its guardas swung over into the handle. The drawing does not i show thisposition, but it is readily under stood. This tail piece 0 performs thefunction, when the blade is within the recess of the handle, of beingthe means of outturning the blade and the guard, because while thehandle is held in one hand, the finger of the other hand presses againstthe concave surface of the tail piece and the blade and guard are swungover and outward into the position Fig. 1. For surgical and otherpurposes, it may at times be desirable to use the blade without theguard, such for example as making an incisive cut, in which case theguard should be swung up into the position Fig. 2, when it will beclearly away from the blade.

In the form of my invention shown in Fig. 6, the pivot pin that connectsthe blade and guard together, also connects both of these to therecessed handle, the tang of the blade being provided with a spring 10,having a fiat upper face bearing upon the flat faces 8 and 9 of theguard and adapted to'maintain the guard either in the position shown inFig. 6 or in the position shown in Fig. 2. In this form of my invention,both the blade and guard are adapted to be turned into the handlerecess, and while the guard may be removed or turned out by engaging thecatch d, it will no doubt be necessary to provide one side of the bladewith a recess for engagement by the nail of a finger as is usual inordinary knives.

I claim as my invention:

1. A corn knife comprising a recessed handle, a blade pivoted to thehandle, a guard pivoted to the blade for independent movement and theblade and guard together adapted to turn into the handle, and a springbearing on the guard for holding the same in position as desired.

2. A corn knife comprising a recessed handle, a blade pivoted to thehandle, a guard pivoted to the blade for independent movement and theblade and guard together adapted to turn into the handle, a springbearing on the guard for holding the same in position as desired and asecond spring secured to the handle and bearing on the blade for holdingit in the desired position.

3. A corn knife comprising a recessed handle, a blade pivoted to thehandle, a guard pivoted to the shank of the blade for indeassure pendentmovement and having square faces at its pivot end, and the blade and theguard together adapted to turn into the handle, a spring secured to thetang of the blade and having a flat edge bearing upon an edge of theguard for holding the same in position as desired.

4. A com knife comprising a recessed handle, a blade pivoted to thehandle, a guard pivoted to the tang of the blade for independentmovement and having square faces at its pivot end, and the blade and theguard together adapted to turn into the handle, a spring secured to thetang of the blade and having a flat edge bearing upon anedge of theguard for holding the same in position as desired, and a second springsecured to the handle and bearing on the blade for holding it in thedesired position.

5. A corn knife comprising a recessed handle, a spring 4 arranged alongthe handle behind the recess, integral with and forming part of the backof the handle, a blade pivoted to the handle, a guard pivoted to thetang of the blade for independent movement and having square edges atits pivot end, and the blade and the guard together adapted to turn intothe handle, a spring secured to the tang of the blade and having a fiatedge bearing upon an edge of the guard for holding the same in positionas desired, the spring 4 bearing upon the blade.

6. A corn knife comprising a recessed handle, a blade pivoted to thehandle, a guard pivoted to the tang of the blade for independentmovement and having square edges at its pivot end, and the blade and theguard together adapted to turn into the handle, a spring secured to thepivot end of the tang of the blade and having a free end extending awayfrom the blade and having a spring finger with a flat edge bearing uponan edge of the guard for holding the same in position as desired.

In witness whereof I have signed my name to the foregoing specificationin the presence of two subscribing witnesses.

OTTO KAMPFE.

Witnesses J. M. RIEMANN, J. H. REILLY.

